pnp silicon planar epitaxial high voltage bf421 video transistors BF423 to-92 plastic package hi g h volta g e video am p lifier absolute maximum ratings(ta=25oc unless specified otherwise) description symbol 423 421 units collector emitter voltage v ceo 250 300 v collector base voltage v cbo 250 300 v emitter base voltage v ebo 5v collector current continuous i c 500 ma power dissipation@ ta=25oc p d 800 mw derate above 25oc 6.4 mw/oc power dissipation@ tc=25oc p d 2.75 w derate above 25oc 22 mw/oc operating and storage junction t j , t stg -55 to +150 oc temperature range thermal resistance junction to ambient r th(j-a) 156 oc/w junction to case r th(j-c) 45 oc/w electrical characteristics (ta=25oc unless otherwise specified) description symbol test condition 423 421 units collector emitter voltage* v ceo i c =1.0ma,i b =0 >250 >300 v collector base voltage v cbo i c =100 a.i e =0 >250 >300 v emitterbase voltage v ebo i e =100 a, i c =0 >5 >5 v collector-cut off current i cbo v cb =200v,i e =0 <10 <10 na emitter-cut off current i ebo v eb =5.0v, i c =0 <100 <100 na dc current gain h fe i c =25ma,v ce =20v >50 >50 collector emitter saturation voltage v ce(sat) i c =20ma,i b =2ma <0.5 <0.5 v base emitter saturation voltage v be(sat) i c =20ma,i b =2ma <2 <2 v continental device india limited data sheet page 1 of 4 continental device india limited an iso/ts 16949, iso 9001 and iso 14001 certified company
pnp silicon planar epitaxial high voltage bf421 video transistors BF423 to-92 plastic package electrical characteristics (ta=25oc unless specified otherwise) description symbol test condition 423 421 units dynamic characteristics current gain-bandwidth product f t i c =10ma, v ce =10v >60 >60 mhz f=50mhz feedback capacitance c re v cb =30v, i e =0 <2.8 <2.8 pf f=1mhz *pulse condition: = width < 300us, duty cycle < 2.0%. continental device india limited data sheet page 2 of 4
bf421 BF423 to-92 plastic package to-92 transistors on tape and ammo pack to-92 plastic package pin configuration 1. base 2. collector 3. emitter b a l solderability ensured dimension with 'l' uncontrolled beyond 'l' k e d aa sec aa g d 3 2 1 1 2 3 f f h c 3 2 1 all diminsions in mm. dim min. max. a 4.32 5.33 b 4.45 5.20 c 3.18 4.19 d 0.41 0.55 e 0.35 0.50 f5 deg g 1.14 1.40 h 1.14 1.53 2.082 k l 12.70 1.982 ? cumulative pitch error 1.0 mm/20 pitch to be measured at bottom of clinch at top of body t1 0.3 - 0.6 body width body height body thickness pitch of component feed hole pitch feed hole centre to component centre distance between outer leads component alignment tape width hold-down tape width hole position hold-down tape position lead wire clinch height component height length of snipped leads feed hole diameter total tape thickness lead - to - lead distancef1, clinch height pull - out force item a1 a t p po p2 f h w wo w1 w2 ho h1 l do t f2 h2 (p) symbol specification 4.0 4.8 3.9 6n min. 12.7 12.7 6.35 5.08 0 18 6 9 0.5 16 4 2.54 nom. 4.8 5.2 4.2 1 23.25 11.0 1.2 3 max. 1 0.3 0.4 +0.6 -0.2 0.5 0.2 +0.7 -0.5 0.2 0.5 0.2 +0.4 -0.1 tol . remarks notes 1. maximum alignment deviation between leads not to be greater than 0.2 mm. 2. maximum non-cumulative variation between tape feed holes shall not exceed 1 mm in 20 pitches. 3. holddown tape not to exceed beyond the edge(s) of carrier tape and there shall be no exposure of adhesive. 4. no more than 3 consecutive missing components are permitted. 5. a tape trailer, having at least three feed holes are required after the last component. 6 . s pli c e s s hall n o t interfere with the s pr oc ket feed h o le s . all dimensions in mm unless specified otherwise ammo pack s t y le adhesive tape on top side flat side mechanical data t t1 t f1 f2 f p2 po do (p) w2 wo w1 w h1 a a1 p h0 l flat side of transistor and adhesive tape visible 2000 pcs./ammo pack label carrier strip 183 mm 3 3 1 m m f e e d 4 2 m m h h to-92 bulk to-92 t&a 1k/polybag 2k/ammo box 200 gm/1k pcs 645 gm/2k pcs 3" x 7.5" x 7.5" 12.5" x 8" x 1.8" 5k 2k 17" x 15" x 13.5" 17" x 15" x 13.5" 80k 32k 23 kgs 12.5 kgs package net weight/qty details standard pack inner carton box qty outer carton box qty gr wt size size p ac ki ng d eta il continental device india limited data sheet page 3 of 4
notes bf421 BF423 to-92 plastic package disclaimer the product information and the selection guides facilitate selection of the cdil's discrete semiconductor device(s) best suited for application in your product(s) as per your requirement. it is recommended that you completely review our data sheet(s) so as to confirm that the device(s) meet functionality parameters for your application. the information furnished in the data sheet and on the cdil web site/cd is believed to be accurate and reliable. cdil however, does not assume responsibility for inaccuracies or incomplete information. furthermore, cdil does not assume liability whatsoever, arising out of the application or use of any cdil product; neither does it convey any license under its patent rights nor rights of others. these products are not designed for use in life saving/support appliances or systems. cdil customers selling these products (either as individual discrete semiconductor devices or incorporated in their end products), in any life saving/support appliances or systems or applications do so at their own risk and cdil will not be responsible for any damages resulting from such sale(s). cdil strives for continuous improvement and reserves the right to change the specifications of its products without prior notic e. cdil is a registered trademark of continental device india limited c-120 naraina industrial area, new delhi 110 028, india. telephone + 91-11-579 6150 fax + 91-11-579 9569, 579 5290 e-mail sales @ cdil.com www.cdil.com continental device india limited data sheet page 4 of 4
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